Plug-In Connections - Viessmann Vitocontrol-S, WB2 Installation, Start-Up And Service Instructions Manual

Installation Example
Plug-in connections multiple Vitodens 200 (model WB2-44 or -60) with one boiler dedicated to DHW production
and one heating circuit
.
A Vitodens 200 plug-in
connections
A1
Vitodens 200 pump junction
box
B Power/Pump module
C Boiler pump
D DHW pump (one boiler only)
E Wall receptacle (main power
supply)
F Low water cut-off (if
applicable)
*1
See page 14 for internal wiring diagram
10
(continued)
G Main disconnect switch
H DHW sensor (one boiler only)
I Vitocontrol-S, WB2
J Power supply, 120 VAC, 7 A
K System pump
L Output: alarm, dry contact
M Outdoor temperature sensor
N Common supply temperature
sensor (strap-on)
O Input: dry contact, "Party"
switch
P Input: dry contact, heat
demand
R Vi-BUS connection
S KM-Bus
R
*1
S